Modelling of Nonthermal Microwave Emission from Twisted Magnetic Loops

I. N. Sharykin, A. A. Kuznetsov

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Microwave gyrosynchrotron radio emission generated by nonthermal electrons in twisted magnetic loops is modelled using the recently developed simulation tool GX Simulator. We consider isotropic and anisotropic pitch-angle distributions. The main scope of the work is to understand the impact of a twisted magnetic field topology on radio emission maps. We have found that nonthermal electrons inside twisted magnetic loops produce gyrosynchrotron radio emission with a particular polarisation distribution. The polarisation sign inversion line is inclined relatively to the axis of the loop. The radio emission source is more compact in the case of a less twisted loop, assuming an anisotropic pitch-angle distribution of nonthermal electrons.

Original languageEnglish (US)
Pages (from-to)1341-1355
Number of pages15
JournalSolar Physics
Issue number5
StatePublished - May 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Energetic particles
  • Flares
  • Radio
  • X-rays


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